Can we view objects in the JVM memory?

Posted by Sebastien Lorber on Stack Overflow See other posts from Stack Overflow or by Sebastien Lorber
Published on 2010-05-11T17:10:03Z Indexed on 2010/05/11 17:24 UTC
Read the original article Hit count: 281

Filed under:

java

|

jvm

|

production-environment

|

caching

Hey,

At work we found that on some instances (particulary the slow ones) we have a different behaviour, acquired at the reboot.

We guess a cache is not initialized correctly, or maybe a concurrency problem... Anyway it's not reproductible in any other env than production.

We actually don't have loggers to activate... it's an old component...

Thus i'd like to know if there are tools that can help us to see the different objets present in the JVM memory in order to check the content of the cache...

Thank you!

© Stack Overflow or respective owner

Related posts about java

Tomcat 6: Access Control Exception?

as seen on Server Fault - Search for 'Server Fault'
I'm trying to setup a tomcat6 server, and I'm trying to match another setup someone else established. However, my deployment (default Ubuntu install) uses a policy.d/ directory structure, and the established server just uses a catalina.policy file. I've tried setting every entry in policy.d to match… >>> More
Problem in creation MDB Queue connection at Jboss StartUp

as seen on Stack Overflow - Search for 'Stack Overflow'
I am not able to create a Queue connection in JBOSS4.2.3GA Version & Java1.5, as I am using MDB as per the below details. I am putting this MDB in a jar file(named utsJar.jar) and copied it in deploy folder of JBOSS, In the test env. this MDB works well but in another env. [ env settings and… >>> More
failing to establish connection between Postgres db and gwt

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I am using Postgres and gwt 2.0 for one of my applications. I am facing problem connecting to the database. When I try to connect it gives "ClassNotFoundException". Here is what I get when I try to connect to database: java.lang.ClassNotFoundException: org.postgresql.Driver at java.net… >>> More
failing to establish connection between postgre db and gwt

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, For i am using postgre and gwt 2.0 for one of my applications. I am facing problem connecting to the database. When i try to connect it gives "ClassNotFoundException". Here is what i get when i try to connect to database: java.lang.ClassNotFoundException: org.postgresql.Driver at java.net… >>> More
Migration and deployement problems JBoss 4.2.2.GA to JBoss 6.0.0.M2

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi, I'm trying to migrate an application running on JBoss 4.2.2.GA to JBoss 6.0.0.M2 I give you some log to explain my problem : boot.log : 2010-03-16 09:59:29,406 ERROR [org.jboss.system.server.profileservice.ProfileServiceBootstrap] (Thread-2) Failed to load profile: Summary of incomplete deployments… >>> More

Related posts about jvm

Is there a way to update all Java related alternatives?

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
Is there a way to quickly switch over all the Java related alternatives using update-alternatives? For instance, if want to switch Java over to 7, I run sudo update-alternatives --config java and select the Java 7 OpenJdk. But if I run update-alternatives --get-selections | grep java I get the following… >>> More
?Pick-Up??????????? JVM ?JRockit????????·??????|WebLogic Channel|??????

as seen on Oracle Blogs - Search for 'Oracle Blogs'
??Oracle JRockit JVM?????????????????????·?????????????????????????JVM??????? ???????????????????????????????????????????????????????????????????????? ??????? ?????????Oracle JRockit???????·??????????????????????????????????????????????????????????? Oracle JRockit JDK???????????????????… >>> More
how can a servlet in one jvm communicate with servlet in another jvm

as seen on Stack Overflow - Search for 'Stack Overflow'
can this be solved simply by specifying the complete url of the servlet in the RequestDispatcher? >>> More
?????????????JVM??????|WebLogic Channel|??????

as seen on Oracle Blogs - Search for 'Oracle Blogs'
JRockit JVM???????????????????????????????????????????????????????????????????????????????????????????? ?JVM???????????????? ?JVM??????????? ???????????????????? ????????? ?JVM??????????????JVM??????????????… >>> More
Apache DS fails to list users

as seen on Stack Overflow - Search for 'Stack Overflow'
Apache ds fails to list the users INFO | jvm 1 | 2012/03/28 15:54:04 | java.lang.Error: ERR_546 CRITICAL: page header magic for block 59 not OK 0 INFO | jvm 1 | 2012/03/28 15:54:04 | at jdbm.recman.PageHeader.(PageHeader.java:95) INFO | jvm 1 | 2012/03/28 15:54:04 | at… >>> More